Hi, I would like your help please. My son suffers from tics and for the past couple week they have increased to the point where he twitches so much his glasses have flown out of his face. I have been doing a lot of reading and I heard that magnesium supplement helps with tics. I give him foods with magnesium but I have not seen a change so I think he needs more. What brand do you recommend and how much? My son is 11 years old and he weighs about 98lbs. If there is anything else that you recommend for me to give him, I would also appreciate it the info. Thank so much.